MT5 – Why do the points form slanted columns in the 1D optimization graph?

While examining the 1D optimization graphs in the MetaTrader 5 Strategy Tester, I noticed something I cannot explain.

The points representing different optimization results are not aligned vertically for each value of the parameter on the X-axis. Instead, they often form columns that slope to the right as the Y-value increases.

The slope is not constant: it varies considerably from one column to another and seems to depend on the distribution of the results.

I have a few questions:

  • Is this simply a graphical offset (jitter) intended to prevent overlapping points?

  • Or does the horizontal displacement encode additional information, perhaps related to the other optimized parameters?

  • Is there any documentation explaining exactly how the point coordinates are calculated in the 1D optimization graph?Passo base versus custom max

Thanks in advance for any clarification!